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Commit 76b6db01 authored by Eric W. Biederman's avatar Eric W. Biederman
Browse files

userns: Replace user_ns_map_uid and user_ns_map_gid with from_kuid and from_kgid 



These function are no longer needed replace them with their more useful equivalents.

Acked-by: default avatarSerge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: default avatarEric W. Biederman <ebiederm@xmission.com>
parent 078de5f7

include/linux/user_namespace.h

+0 −12
Original line number Diff line number Diff line
@@ -69,16 +69,4 @@ static inline void put_user_ns(struct user_namespace *ns) 


#endif



static inline uid_t user_ns_map_uid(struct user_namespace *to,

	const struct cred *cred, kuid_t uid)

{

	return from_kuid_munged(to, uid);

}



static inline gid_t user_ns_map_gid(struct user_namespace *to,

	const struct cred *cred, kgid_t gid)

{

	return from_kgid_munged(to, gid);

}



#endif /* _LINUX_USER_H */

ipc/mqueue.c

+1 −2
Original line number Diff line number Diff line
@@ -538,8 +538,7 @@ static void __do_notify(struct mqueue_inode_info *info) 
			rcu_read_lock();

			sig_i.si_pid = task_tgid_nr_ns(current,

						ns_of_pid(info->notify_owner));

			sig_i.si_uid = user_ns_map_uid(info->notify_user_ns,

						current_cred(), current_uid());

			sig_i.si_uid = from_kuid_munged(info->notify_user_ns, current_uid());

			rcu_read_unlock();



			kill_pid_info(info->notify.sigev_signo,

kernel/signal.c

+1 −1
Original line number Diff line number Diff line
@@ -1026,7 +1026,7 @@ static inline int legacy_queue(struct sigpending *signals, int sig) 
static inline uid_t map_cred_ns(const struct cred *cred,

				struct user_namespace *ns)

{

	return user_ns_map_uid(ns, cred, cred->uid);

	return from_kuid_munged(ns, cred->uid);

}



#ifdef CONFIG_USER_NS

net/core/sock.c

+2 −2
Original line number Diff line number Diff line
@@ -821,8 +821,8 @@ void cred_to_ucred(struct pid *pid, const struct cred *cred, 
	if (cred) {

		struct user_namespace *current_ns = current_user_ns();



		ucred->uid = user_ns_map_uid(current_ns, cred, cred->euid);

		ucred->gid = user_ns_map_gid(current_ns, cred, cred->egid);

		ucred->uid = from_kuid(current_ns, cred->euid);

		ucred->gid = from_kgid(current_ns, cred->egid);

	}

}

EXPORT_SYMBOL_GPL(cred_to_ucred);